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IrinaVladis [17]
3 years ago
6

Which of the following can you physically change for a pure substance such as water, without altering the chemical composition?

Chemistry
1 answer:
ZanzabumX [31]3 years ago
4 0
Color most likely.

Step by step explanation:
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Some growth regulators are useful to farmers and gardeners.<br> O True<br> O False
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Answer:

True

Explanation:

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2 years ago
PLEASE HELP----
balandron [24]
Actual yield of Fe2(So4)3 = 18.5g

2FePo4 + 3Na2SO4 -> Fe2(SO4)3 + 2Na3PO4

Mole of FePO4 = mass of it / its molar mass =
25 g / (55.8 + 31 + 16*4) = 0.166 mol

every 2 mole of FePO4 will form 1 mole of Fe2(SO4)3

Mole of Fe2(SO4)3 produced = 0.166 / 2 = 0.0829 mol

0.0829 * (55.8*2 + 3*(32.1+ 16*4)) = 33.148 g of Fe2(SO4)3

18.5 / 33.148 * 100 = 55.8%

3 0
3 years ago
Surface temperatures on Venus, the hottest planet in our solar system, can reach 755K. Express this temperature in degrees Fahre
dmitriy555 [2]

Answer:

about 900 degree Fahrenheit

Explanation:

7 0
2 years ago
HELP please, 50 points 5 minutes timed
shusha [124]

Answer:

Coordinate geometry is one of the most important and exciting ideas of mathematics. In particular it is central to the mathematics students meet at school. It provides a connection between algebra and geometry through graphs of lines and curves. This enables geometric problems to be solved algebraically and provides geometric insights into algebra.

The invention of calculus was an extremely important development in mathematics that enabled mathematicians and physicists to model the real world in ways that was previously impossible. It brought together nearly all of algebra and geometry using the coordinate plane. The invention of calculus depended on the development of coordinate geometry.

Explanation:

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2 years ago
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Thank You!
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3 0
3 years ago
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